Hot water stove



HOT WATER STOVE Filed June 19. 1928 2 Sheets-Sheet Suor/weg May 3, 1932. E. A. coRBlN. JR

HOT WATER STOV E Filed June'l9. 1928 2 Sheets-*Sheet 2 Illlllllllllrln Patented Mday 3i, 1932 v:UNITED STATES' PATENT oFFice Ennnnra. oonBIN, :n.onswAnTHMonn PENNSYLVANIA, AssIGNoR or ONE-HALF rro Y wrLLIAivrc. BIDDLE, or LANsDowNn, PENNSYLVANIA Hor WATER srovn,

`Applied-ion med .nine 19,

' The object of this invention isrtofdevise a novel construction andl arrangement of'a hot water stove which willy be very eiiicient in operation and'which will require a minimum amount of attention. i Y

' A further object is to devise a'novelhot water'stovewhereina supply of. coal can be maintained in a storage space, the construction being'such that the coal will feed by if) gravityas needed to adown'wardly inclined fuel bed. l A further objectV of thisn invention is to devise a novel construction and arrangement of a downwardly inclined gratemechanism Vi wherein "the grate can be shaken by`rectilinear movement of tliegratebars. A n

A further object of the invention" is'to dei vise a novel construction and arrangement of a` grate whereinfthe'water contact with' the i0 heated surfaces isincreased tova maximum and wherein the walls' surrounding the water inv thesto've are insulated to'prevent the loss ofl heat by radiation. l

With 'the above and other objects in view as-will-fmore clearly hereinafter (appear, my invention comprehends a novel Yconstruction and arrangement of a hot water-stove, which isl especially adapted for heating hot water for-household purposes. l

It further comprehends a novel hot water stove wherein a supply of coal is fed from a magazine "by gravity to a downwardly inclined fuel bed which, with-the combustion space, is surrounded by the water which is to be heated.

It further comprehends a novel construcf tion and arrangement of a casing.

vIt further comprehendsa novel constructionand arrangement of ay grate mechanism which isl` downwardly inclined and which is adaptedto be shaken by a rectilinear movement of the grate.

It further compi'ehends a novel construe4 tion of a grate having pockets or depressions 1928. Serial No. 286,631.

pear in thev detailed description and the apu pended claims.

For the purpose of illustrating the invention, I have shown in the accompanying drawings a typical embodiment of it, which, in practice, will give reliable and satisfactory results. It is, however, to be understood that this embodiment is typical `only and that the various instrumentalities of which my invention consists can be variously arranged and organized, and that theinvention is notlimited tothe precise arrangement and organization of these instrumentalities asv herein set forth. y y Figure 1 is a vertical section Lof a hot water stove embodying my invention, the section being taken substantially on line 1-1 of Figure 2.

Figure 2 Ais a front' elevation partly in section of the hot water stove.

FigureA is a section on line 3--3 of Figure 1.,y

Figure 4 is a section on line 1f-4 of Figure 1.

Figure 5 is a top plan view of a grate section.

Similar numerals of reference indicate corresponding parts. f

Referring to the drawings 1 designates the casing of a hot water stove embodying my invention. The bottom portion of the casing forms an ash pit 2 having an opening which is closed by a door 4 of any desired or conventional type. The door is preferably provided with controllable air openings 5.

6 designates the grate which is movably mounted on the grate support 7. The grate is'provided with a bar 8 guided in a downwardly inclined aperture 9 in the casing 1 and at its outer end it is provided with an acof such recesses.

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tuating handle 10. The grate is provided withthe slots 11 and on opposite sides of these slots the grate is provided with therecesses 12 in its top face said'recesses preferablyfforming straight walls 13 at one end It willbenoted that the grateis supported in such a. manner that it is downwardly inclined so that the bed of fuel 14 is also downwardly inclined.' 15 designates the combustion chamber which communicates by means of the circuitous passage 16 with thefexit flueV 17. n 18 designates thewater chamber to which the cold water is introduced by a con` 16 and the hot water isV discharged 'through theV duit*19 leading from asource of ,water supply hot water pipe 20.

j The VwaterV chamber 18 substantially's'ur;

rounds the'bed of fuel-andv the combustionV chamber and alsotherpassage 16 leading to the'exit flue 17.-v vThe casingV 1: forming the outer wall of the water chamber is vprovided withY an external layer of insulation material the opening 24 which is closed by'means ofa 21.l The' casing'lat its upper front portion is provided with a coal magazine 22v having 'its upperend closed by means of a hinged -door 23. The'frontof the stove is provided with Y hinged door 25. This door opening 24 is sur- 1 rounded by 'the watercharnber andthe v Y wallfforming the door opening 24 vis curved downwardly and then rearwardly to'form'a portion 26 which r"overhangs the upper por'- tionof the bed of fuel 14. j j

The inner wall ofl the water chamber is looped inwardly as at-27 sov that va. restricted throat is'formed ,for the passage of the prod-V ucts of combustion tothe Vexitiiue. The water chamberv is extended over and around this throat as will beclear from the sho'wingin "Figure 1.

Thegrate is shaken by rectilinear movement and the recesses 12 vtend to break up theV ash and any clinkers which might form,` by'with- Y drawing the grate asfar as possible.

By'my novel construction one isenabledtto y provide a magazine oflargestoragecapacityv with an unobstructed feedV of the ooal by gravity to a downwardly inclined bed of fuel so that the volatile gases from the coking op# eration will be consumed,'such action being facilitated by the formation of thecombustion chamber and its exit. The inner jwall of the water jacket is'inturned as at 28 and 29 to extendbeneath the bed fuel. The grate bar has a removable Cotter pin 30 which by contact with the wall surroundingfthe aperture the large clinkers which fall. by gravity and are passed into the ash pit. l

This feature is of great importance as the grate openings are very narrow to enable'the heater to burn buckwheat and rice coal sizes, and unless the grate was able to open at .its lower end and disgorge the large clinkers and cut oli sections of these clinkers, when of largek size, the grate area would soon be choked up and the heater become inoperative. The clinkers always form'fattthe'lower end'of tilted grate bars kwhile the coal vpouring outof the'magazine at the high end' of the grate is always the last toignite and be- Y comey 'clinkersv j This)Y form v of "construction "enables the operatorto leave the boiler without vattentionof any kind,'on full draught fortenhurs while'an ordinary tank heater kusually burns. out in two or'three hours and needs constant stokingand raking to keep it inoperation.'4V r frIt will be' apparent from the foregoin-g that Vin accordance withmyf present invention I provi/de a downwardly inclined ffuel bed and the casing is provided/'with a magazine divided around the fire Vdoorto. feedcoal by gravity to the inclined bed of fuel.v The casing is also -water y.jacketed over` all, direct radiating surfaces so that thestovefwill be veryv etiicvient in practice as the maximum amount of water will be heated. f

' It will now be apparent that I havedevised a new and useful hot water stove -which embodies the features ofadvantageenumerated as desirable in the statement of the invention and the above description, andvwhile I have, ini'the present instance,'s hown and-described al preferred embodiment thereof which will give in practice' satisfactoryv andreliable `results, it ,isy to be. understood that this em-V bodiment is susceptible of Y modification in various particulars 'without departing from the spirit or scope of the invention or sacrificing; any of-its advantages.' 7 'i 'Having thurs described my' invention what I'clai'mas new and desire to'secure by Letters Patent',is:- v i 1. In a'hot water stove, a" casing having a double wall forming' a* water jacket and provided with a combustion chamber, the inner wall y'of 'saidwater jacket at its vupper endV being looped laterally inwardly to` form a restricted circuitous throatvv for the passage of products of combustion with the water jacket extending over and around such throat, an inclined grate at the bottom of such combustion. chamber, a coal magazine opening throughthe top of the stove andextending over the combustion chamber and over the water jacket of said throat, and means to support said grate for rectilinear shakingmovement. Y Y v Y 2. Ina hot water stove, a casing having a double wall forming a Vwater jacket surrounding a combustion'chamber, acoal magazine above the water jacket` and within the stove and having its bottom wall formed by the water jacket, a grate inclning downwardly and rearwardly to which the coal is fed to form a bed of fuel and mounted for rectilinear shaking movement, the inner wall of said water jacket being looped inwardly to cover the greater portion of the upper end of the combustion chamber and to form a vcrcuitous exit passage for the products of combustion, said passage being surrounded by the water jacket as is also said fuel bed.

ELBERT A. coRBrN, JR. 

